Machine for basing incandescent lamps.



PATENTED JUNE 4;, 1907.

W. R. BURROWS. MACHINE FO R BASING INGANDESGENT LAMPS.

APPLICATION FILED MAY 11,1906.

3 SHEETS-SHEET 1:

lnventor:

William RBur-mws. y A y.

No. 856,129. PATENTED JUNE 4, 1907. W. R. BURROWS. MACHINE FOR BASING INGANDESGENT LAMPS.

APPLICATION FILED MAY 11,1906.

3 SHEETS-SHEET 2.

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1 PATENTED JUNE 4, 1907. W. R. BURROWS. MACHINE FOR BASING INGANDESGENT LAMPS.

APPLICATION FILED MA Y11,1906.

3 SHEETS-SHEET 3.

lnvencoh M I l lam R Burrows. by W72,

UNITED STATES PATENT OFFICE.

WILLIAM R. BURROWS, OF NEWARK, NEW JERSEY, ASSIGN OR TO GENERAL ELECTRIC COMPANY, CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented June 4,1907.

Application filed May 11,1906. Serial No. 316,294.

To all whom it nut/y concern:

Be it known that I, WILLIAM R. BURROWS, a citizen of the United States, residing at Newark, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Machines for Basing Incandescent Lamps, of which the following is a specification.

This invention relates to machines for unit ing the bases and bulbs of incandescent lamps.

The object of the invention is to provide a ,machine capable of performing many of the hence at a greatly decreased cost.

My invention contemplates the provision of a means for delivering charges of a suitable cementing material to the bases which are to.

be united with bulbs, instead of supplying this material to the bases by hand at great expense of time and labor as hasbeen done heretofore. The cementing material may be any composition suitable for this purpose and may be delivered to the bases in a molten state or in a hard state and afterward-heated to soften it. Preferably the material is supplied to the bases ina molten state from a reserv, 1r where it is maintained in a fluid or plastic condition by a suitable heater, and mechanically-actuated devices are provided for delivering charges of the material to the lamp-bases, the latter being carried by a rotatable frame so that the bases are brought successively into operative relation to the reservoir. This frame 'may also carry devices for pressing the lamp-bulbs into the bases and holding the parts in this relation while the cementing material cools and hardens. Preferably, the means for delivering the charges of the cementing material is arranged to measure outcharges of predetermixed quantity, so that each base receives exactly the proper amount. The operation of basing the lamps may thus proceed continuously, it being necessary only for the operator to assemble the parts in proper relation for the base to receive the cementing compound and for the clamp to act upon the bulb to press the bulb and the base together,

and to remove the completed lamps from the machine.

I have illustrated the preferred embodiment of my invention in the accompanying drawings, in which Figure 1 is a front View of the machine; Fig. 2 is a top view of the same; Fig. 3 is a horizontal section below the table, certain parts being broken away; 4 is a sectional elevation of the reservoir; Figs. 5 and 6 are bottom views of the reservoir, showing the two positions of the slide-valve; Fig. 7 is a development of two of the cams; and Figs. 8 and 9 are details of the operating mechan- 1sm.

Referring to these drawings, 1 indicates a table carrying bearings 2, in which a shaft 3 is mounted for rotation. At its lower end, this shaft carries a gear 4 meshing with a pinion 5 carried by a shaft 6 mounted in bearings 7. On the lower end of this shaft is loosely mounted a pulley 8, to which rotary motion is communicated by a belt 9, and secured to the shaft in proximity to the loose pulley 8 is a member 10 having an opening therein in which a pin 11 (Fig. 9) is movable parallel to shaft 6. This pin is pressed by a spring 12 in a direction to carry its end into one of a plurality of openings 13 in pulley 8 and thus lock the pulley in driving relation to member 10 and shaft 6 to'which themember is secured. Pin 11 has a head 14, with which cooperates the free end of an arm 15 carried by a shaft 16 which is adapted to rock in suitable bearings, this rocking movement being effected by a treadle 17 connected by a rod to a bellcrank lever 18, the end of which is linked to an arm 19 secured to shaft 16. The side of arm 15 which engages the head 14 of pin 11 is inclined somewhat. As thus constructed, it Will be seen that when treadle 17 is depressed the connecting levers operate to rock shaft 16 in its bearings and move the end of spring 12 then moves the pin to a position to lock pulley 8 in driving operation to shaft 6, and when treadle 17 is released a spring 20, connecting arm 19 to the frame, turns shaft 16 back to its original position; when shaft 6 is nearing the completion of a revolution, the head 14 of pin 11 engages the inclined sideof arm 15 and is moved in its opening until its end disengages pulley 8, thus bringing shaft 6 to rest after it has made one complete revolution.

Above the table 1, shaft 3 carries a frame IOC ICS

' reservoir.

21, on which are a plurality of receptacles 22, each of which is adapted to receive a lampbase. At its upper end, shaft 3 carries a sec- 0nd frame 23, in which are openings for a plurality of rods 24, each carrying at its lower end a clamping member and each provided with a spring 26 acting to press the rod and the clamping member carried thereby downward. At its upper end, each rod 24 has a head 27 adapted to cotiperate with a cam surface 28 mounted on a standard 29. The number of receptacles 22 and clamping members 2-5 corresponding thereto may be varied as desired; in the present instance, I have shown twelve such receptacles.

Mounted in bearings below the table 1, is a shaft 30 driven continuously by a belt from any suitable source of power and carrying a pinion which meshes with a gear 31 on a shaft 32, which shaft carries a sprocket 33,

which with a chain 34 communicates rotary movement to a gear 35 loosely mounted on a shaft 36. Secured on shaft 36 in proximity to gear 35 is a member 37 having a springpressed pin 38 movabletherein to carry its end into one of a plurality of openings in the side of gear 35 and thus lock gear 35 in driving relation to shaft 36 in the same manner as was described in connection with shaft 6. The movement of pin-38 is controlled by an arm 39 carried by a rocking shaft 40 on which is secured an operating arm 41 connected by a link 42 with a treadle 43. This mechanism is so constructed that when treadle 43 is depressed and then immediately released, shaft 36 is actuated by. the continuously rotating gear 35 to make-one complete revolution and then come to rest.

Secured on shaft 36 is a cam 44, on the periphery of which bears a roller carried by a frame 45 depending from a frame 46 adapted to reciprocate in guides 47 on the bottom of table 1, this reciprocation being effected by cam 44 in one direction and in the opposite direction by a spring 46, one end of which is attached to the frame and the other to the table. This frame has an upwardly-extending portion which supports a reservoir 47 shown in section in Fig. 4 and containing any suitable cementing material, such as a resin compound, which is heated to keep it in a molten state by a burner 48 supplied with 7 gas by flexible tubes 49. In the side of reservoir 47 is a cylindrical tube 50, in which a plun er 51 is adapted to reciprocate, and a smal opening 52 connects this tube with the Opening 52 is so positioned that the portion of tube from its lower end to the bottom of opening 52 will contain a charge of cementing compound sufficient for uniting one lamp-bulb with its base. The reservoir 47 is provided with a central rotatable shaft 53 carrying a plurality of arms 54 which cotiperate with stationary arms 55 to agitate the compound. At its upper end,

shaft 53 carries a pulley 54 and a belt 55 runs on this pulley, on a plurality of sheaves 56 56 and on a pulley 57 carried by shaft 32. It will be seen from Figs-2 and 3 that pulley 57 and the lower sheaves 56 are displaced laterally from the reservoir 47, so that the forward and backward movement'of reservoir 47 approaches a movement about sheaves 56 as a center, and therefore the movement of the reservoir has no material effect on the tension of belt 55.

Secured on shaft 36 are two cams 58 and ,59, the former of which controls a slide-valve for closing and opening the lower end of the tube 50, and the latter the reciprocation of the plunger 51 to expel the charge of cementing compound from the tube. Pivoted on a stub-shaft 60, is a rod 61 carrying a roller which runs on the periphery of the cam 58, and to the free end of rod 61 is connected a link 62 which extends upward and at its upper end is connected to a bell-crank lever 63, to which is also connected. a link 64. On the bottom of the reservoir 47 is pivoted a valvemember 65, one end of which is pivoted to link 64 and the other end of which is adapted to be moved to cover or uncover the opening at the lower end of tube 50. It will be seen that cam 58, rod 62 and lever 63 are laterally displaced from the reservoir 47, so that the backward and forward movement of the reservoir does not cause the connections to the valve-member 65 to operate the valve, and the joints between the levers connecting the valve and its operating cam may be somewhat loose, so as to permit this movement. The free end of rod 61 is connected by a spring 66 to the under side of table 1,so that the roller on the rod is always held in engagement with the periphery of cam 58. The shape of cam 58 is shown in Fig. 1, and also diagrammatically in Fig. 7; it has a single raised portion which operates to move the valve-member 65 away from the opening at the bottom of tube 50 and then permit it to be moved back over the openingagain.

Pivoted on stub-shaft 60, is a second rod 67 carrying a roller which bears on the periphery of the cam 59. Link 68 and pivoted lever 69 connect this rod with the plunger 51. A s ring 70 connects link 68 with the table 1 ant operates to hold the roller on rod 67 firmly against the periphery of cam 59. The shape of cam 59 is shown in Fig. 1, and also diagrammatically in Fig. 7, the latter figure being arranged to illustrate the relative positions of the raised portions on cams 58 and 59. Cam 59 has a raised portion which operates to depress plunger 51 to carry its lower end down to the bottom of the opening 52 before cam 58 opens the slide-valve 65, and a second raised portion superposed upon tlus first one to move the plunger 51 to the bottom of tube 50 after slide-valve 65 has been opened.

The operation of the machine will now be described. The gears 4 and 5 are so related that the movements of-shaft 3, each caused by shaft 6 in making one complete revolution, bring the receptacles 22 in cooperative rela- 5 tion to the end of tube 50 successively. The operator assembles a base and abulb in proper relation for uniting. If the base is provided with a perforated center contact, one of the leading-in wires of the bulb is threaded 10 through the opening in thecenter contact and the other leading-in wire is bent back along the side of the bulb. If the center contact of the base is not perforated, one leadingin wire may be connected to the under sideiof the center contact, as by soldering thereto.

The operator then places the base in the receptacle 22 which is in the position to 006 erate with the reservoir, and holds the bu b over to one side so as not to obstruct the delivery of a charge of cementing compound to the base. The operator then presses treadle 43, thus connecting gear to shaft 36, so that the latter is caused to make one complete revolution. Cam 44, on shaft 36, co-

2 5 acts with the roller on the frame to move frame 46 against the tension of spring 46 and carry reservoir 47 to a position in which the outlet of tube 50 is directly over the base which has just been inserted in the receptacle o 22. At the end of this forward movement of the-reservoir, cam 59 operates rod 67, link 68, lever 69 and plunger 51, to move the plunger to a osition in which its end extends immediate y below the opening 52 from the reser- 5 voir 47 to the tube 50, as indicated by the dotted line in Fig. 4. This closes the communication from the reservoir to the tube, and the bottom portion of the tube contains a charge of the cementing compound which 40 flowed through the opening 52 and into the tube when plunger 51 was in the raised position. Cam 58 then operates rod 61 to turn the slide-valve 65 on its pivot and uncover the opening at the lower end of tube 50, and

45 immediately thereafter the superposed raised portion on cam 59 moves plunger 51 to the bottom of tube 50, thus expelling the charge of the cementing compound from the tube and delivering it to the receptacle which is d 5c rectly thereunder. Further rotation of shaft 36 raises plunger 51, then operates the slidevalve 65 to close the opening at the bottom of tube 50, and then raises plunger 51 until its end is above the opening 52, so as to per 55 mit another charge ofthe cementing compound to flow into the tube. After this has taken place, cam 44 permits the frame 46 to be moved in its guides by spring 46, 'to carry reservoir 47 away from the frame 21 carrying the receptacles 22. The operator then inserts the end of the lamp-bulb in the base and presses treadle 17, thereby causing shaft 6 to make one revolution and shaft 3 to turn a cementing material to a base in said support charge. As this movement takes place, the head 27 on the u per end of the rod 24, which is directly over t e bulb whose end has been inserted in a base, rides down the inclined surface of the cam 28 and the spring 26 for that rod presses its clamping head 25 down upon the end of the bulb to force the bulb into the base and hold it tightly therein. Another base and bulb are then assembled and the base inserted in the receptacle which 7 5 is in the position for receiving a charge, and the operation is repeated.

It'will thus be seen that the operation of basing the'lamps proceedscontinuously, and that it is only necessary for the operator to assemble the parts for a lamp in position and then depress the treadles which control the operation of the mechanism. Also, each base receives just the proper amount of the cementing material, as the charges are meas- 8 ured out and then delivered to the receptacles. The lamps remain on the frame pressed between the bottoms of the receptacles 22 and the clamping-heads 25 While the frame is making ahnost a complete revolution, during which time the cementing compound becomes quite cold and hard, so as to firmly unite the base to the bulb and insure axial alinement of the base and bulb, and the completed lamps are removed from the 5 frame'as they come around in front of the operator again.

What I claim as new and desire to secure .by Letters Patent of the United States, is,-

1. A .machine for basing incandescent lamps having a support for a base, means for 4 delivering a cementing material to a base in said sup ort, and. devices for pressing the base an a bulb together.

2. A -machine for basing incandescent IOO - lamps having a support for 'a base, means for delivering a charge of a cementing material to a base in said support, a heater to soften the material, and devices for pressing the base and a bulb together. "no 3. A machine for basing incandescent" lamps having a support for a base, areservoir for a cementing material, means for maintaining the material therein in a molten 1 state, means for delivering a charge of the material from said reservoir to a'base in said support, and devices-for pressing the base and a bulb together.

4. A machine for basin incandesceiiti lamps having a support for a ase, meansifo i pplyi a predetermined quantity of and devices for pressing the base and a together. a 5. A basing machine for incandescent lamps having a plurality' pl' supports for lamp bases, means for delivering a cementing material to a base in each of said supports,

sufficient distance to bring another receptacle and devices for pressing each of the bases in 65 into the proper position. for receiving a said supports and a lamp-bulb together;

i 6. A bas ing machine. for incandescent lamps having a rotatable frame, a plurality I of receptacles for bases carried thereby,

means for supplying a charge .of a cementing material to a base in each of said receptacles, a heater to soften the material, and devices for pressing each of the bases in said receptacles and a bulb together.

7. A basing machine for incandescent lamps having a plurality of supports for lampbases, a reservoir for-a cementing material, means for maintaining the material therein in a fluid state, means for delivering a charge of the material from said reservoir to each of the bases in said supports, and devices for pressing each of the bases in said supports and a lamp-bulb together.

8. A basing machine for incandescent lamps having a rotatable frame, a plurality of rece tacles for bases carried thereby, means or delivering a predetermined quantity of a cementing material to a base in each of said receptacles, and devices for pressing each of the bases in said receptacles and a lamp-bulb together.

9.. A basing machine for incandescent lamps comprising a rotatable frame, a plurality of receptaclesforbases carried thereby, a power-shaft, means for causing the same to actuate said rotatable frame, means for supplying a cementing material to the bases in said receptacles successively, and means for pressing each of the bases and a bulb .together.

10. A basing machine for incandescent lamps comprising a rotatable frame, a plu-' rality of receptaclesfor bases carried thereby, means controlled by the operator for rotating said frame intermittently, means for delivering a charge of a cementing material to the base in each of said receptacles when it reaches a definite osition, and devices for pressing each of t e bases and a bulb together.

- 11. A basing machine for incandescent lamps, comprisinga support for a base, de-

vices for deliverlng cementing material,

. means for moving said devices into and out ulb together.

of cooperative relation to a base in said support, and means for presslng thebase and a 1 2. A basing machine for incandescent lamps, comprising a receptacle to receive and support a lamp base, devices for supplying a.

or rality of rec'eptac esfor bases carried theremoving said devices into and out of a position charge of a cementing material, means in which the outlet for said charge overlies the base in said receptacle, and means for pressing the base and a bulb together.

13. A basing machine for incandescent lamps, comprising a rotatable frame, a plu rality of receptacles for bases carried there- 'by, a power shaft, means for causing the same to actuate said rotatable frame, devices for supplying charges of a cementing material, means for moving said devices into and out of cooperative relation-t0 the base in each of said receptacles as the bases are brought around by said frame, and means for pressing each of the bases and a bulb together. I

14. A basing machine for incandescent lamps, comprising a rotatable frame, a plurality of receptacles for bases carried'thereby, means controlled by the operator for rotating said frame intermittently, devices for delivering charges of a cementing material, means for moving said devices into and out of cooperative relation to the base in each of said receptacles as the base is brought to a definite position b said frame, and means for pressing each 0 the bases and a bulb together.

15. A basing machine for incandescent lamps having a support for a lamp base, a

reservoir for a cementing material,means for withdrawing a predetermined quantity of the material from said reservoir, means for I supplying the material withdrawn to the base in said support, and devices for pressing the base and alamp-bulb together.

16. A basing machine for incandescent lamps, eomprisinga rotatable frame, a plurality of receptacles for bases carried thereby, means for rotating said frame, a reservoir for a cementing material, a cam for moving the-reservoir toward and away from a recep.

ing predetermined quantities of said material from the reservoir, a cam to actuate said means, a power shaft, means for causing the IIO poWel';shaft to actuate said'cam, means for supplying the charges of material withdrawn to the bases in said receptacles, and devices for pressing each of the bases and a bulb together.

18. A basing machine for incandescent lamps,compris1n arotatable frame, a pluby, means for rotating said frame, a reservoir for a cementing compound, a valve therefor, a cam to actuate the valve, a power shaft, means for causing the ower shaft to actuate said cam, and devices or pressing each of the bases in said receptacles and a bulb together.

19. A basing machine for incandescent lamps, comprising a rotatable frame, a plurality of receptacles for bases carried thereby, means controlled by the o erator for ro- I in a receptacle, anddevices for pressing each 10 tating-said frame intermittent a reservoir of the bases and a bulb togethe for a cementing material, means for moving In Witness whereof, I have hereunto setthe reservoir toward and away from each of my hand this 9th. day of May, 1906.

5 said receptacles as the receptacle is brought to a definite positionbysaid frame, means I t l B for Withdrawing a predetermined quantity of Witnesses:

the material from said reservoir, means for e GEO. V; DELANEY, supplying the material Withdrawn to the base] S. W. WHITEHnAD. 

